Path Examples
{ "store": { "book": [ { "category": "reference", "author": "Nigel Rees", "title": "Sayings of the Century", "price": 8.95 }, { "category": "fiction", "author": "Evelyn Waugh", "title": "Sword of Honour", "price": 12.99 }, { "category": "fiction", "author": "Herman Melville", "title": "Moby Dick", "isbn": "0-553-21311-3", "price": 8.99 }, { "category": "fiction", "author": "J. R. R. Tolkien", "title": "The Lord of the Rings", "isbn": "0-395-19395-8", "price": 22.99 } ], "bicycle": { "color": "red", "price": 19.95 } }, "expensive": 10 }
Operators
| Operator | Description |
|---|---|
$ |
The root element to query. This starts all path expressions. |
@ |
The current node being processed by a filter predicate. |
* |
Wildcard. Available anywhere a name or numeric are required. |
.. |
Deep scan. Available anywhere a name is required. |
.<name> |
Dot-notated child |
['<name>' (, '<name>')] |
Bracket-notated child or children |
[<number> (, <number>)] |
Array index or indexes |
[start:end] |
Array slice operator |
[?(<expression>)] |
Filter expression. Expression must evaluate to a boolean value. |
Functions
| Function | Description | Output |
|---|---|---|
| min() | Provides the min value of an array of numbers | Double |
| max() | Provides the max value of an array of numbers | Double |
| avg() | Provides the average value of an array of numbers | Double |
| stddev() | Provides the standard deviation value of an array of numbers | Double |
| length() | Provides the length of an array | Integer |
| sum() | Provides the sum value of an array of numbers | Double |
Filter Operators
| Operator | Description |
|---|---|
| == | left is equal to right (note that 1 is not equal to '1') |
| != | left is not equal to right |
| < | left is less than right |
| <= | left is less or equal to right |
| > | left is greater than right |
| >= | left is greater than or equal to right |
| =~ | left matches regular expression [?(@.name =~ /foo.*?/i)] |
| in | left exists in right [?(@.size in ['S', 'M'])] |
| nin | left does not exists in right |
| subsetof | left is a subset of right [?(@.sizes subsetof ['S', 'M', 'L'])] |
| anyof | left has an intersection with right [?(@.sizes anyof ['M', 'L'])] |
| noneof | left has no intersection with right [?(@.sizes noneof ['M', 'L'])] |
| size | size of left (array or string) should match right |
| empty | left (array or string) should be empty |
Path Examples
| JsonPath | Result |
|---|---|
| $.store.book[*].author | The authors of all books:
[ "Nigel Rees", "Evelyn Waugh", "Herman Melville", "J. R. R. Tolkien" ] |
| $..author | All authors:
[ "Nigel Rees", "Evelyn Waugh", "Herman Melville", "J. R. R. Tolkien" ] |
| $.store.* | All things, both books and bicycles:
[
[
{
"category" : "reference",
"author" : "Nigel Rees",
"title" : "Sayings of the Century",
"price" : 8.95
},
{
"category" : "fiction",
"author" : "Evelyn Waugh",
"title" : "Sword of Honour",
"price" : 12.99
},
{
"category" : "fiction",
"author" : "Herman Melville",
"title" : "Moby Dick",
"isbn" : "0-553-21311-3",
"price" : 8.99
},
{
"category" : "fiction",
"author" : "J. R. R. Tolkien",
"title" : "The Lord of the Rings",
"isbn" : "0-395-19395-8",
"price" : 22.99
}
],
{
"color" : "red",
"price" : 19.95
}
]
|
| $.store..price | The price of everything:
[ 8.95, 12.99, 8.99, 22.99, 19.95 ] |
| $..book[2] | The third book:
[
{
"category" : "fiction",
"author" : "Herman Melville",
"title" : "Moby Dick",
"isbn" : "0-553-21311-3",
"price" : 8.99
}
]
|
| $..book[-2] | The second to last book:
[
{
"category" : "fiction",
"author" : "Herman Melville",
"title" : "Moby Dick",
"isbn" : "0-553-21311-3",
"price" : 8.99
}
]
|
| $..book[0,1] | The first two books |
| $..book[:2] | All books from index 0 (inclusive) until index 2 (exclusive) |
| $..book[1:2] | All books from index 1 (inclusive) until index 2 (exclusive) |
| $..book[-2:] | Last two books |
| $..book[2:] | Book number two from tail |
| $..book[?(@.isbn)] | All books with an ISBN number:
[
{
"category" : "fiction",
"author" : "Herman Melville",
"title" : "Moby Dick",
"isbn" : "0-553-21311-3",
"price" : 8.99
},
{
"category" : "fiction",
"author" : "J. R. R. Tolkien",
"title" : "The Lord of the Rings",
"isbn" : "0-395-19395-8",
"price" : 22.99
}
]
|
| $.store.book[?(@.price < 10)] | All books in store cheaper than 10:
[
{
"category" : "reference",
"author" : "Nigel Rees",
"title" : "Sayings of the Century",
"price" : 8.95
},
{
"category" : "fiction",
"author" : "Herman Melville",
"title" : "Moby Dick",
"isbn" : "0-553-21311-3",
"price" : 8.99
}
]
|
| $..book[?(@.price <= $['expensive'])] | All books in store that are not "expensive":
[
{
"category" : "reference",
"author" : "Nigel Rees",
"title" : "Sayings of the Century",
"price" : 8.95
},
{
"category" : "fiction",
"author" : "Herman Melville",
"title" : "Moby Dick",
"isbn" : "0-553-21311-3",
"price" : 8.99
}
]
|
| $..book[?(@.author =~ /.*REES/i)] | All books matching regex (ignore case):
[
{
"category" : "reference",
"author" : "Nigel Rees",
"title" : "Sayings of the Century",
"price" : 8.95
}
]
|
| $..* | Give me every thing |
| $..book.length() |
The number of books |
path example:注：在jmeter 中使用时这里的 length()有时候并不太好用，可以用另外一种方法代替，如下图，要提取 rows 的长度，可用JSON/YAML Path Extractor 提取整个列表$.data.rows赋给变量 list_rows，查看Debug Sampler ,会返回一个 list_rows_matchNr 长度值，可以通过这个长度值进行比较或者取值